Clik here to view.
The Comper "Streak" Single Seat Airplane (British): A Low-Wing Cantilever...
Circular describing the Comper Streak single-seat low-wing cantilever monoplane. Details of the fuselage, construction, wing, stabilizer, engine, landing gear, characteristics, drawings, and...
View ArticleClik here to view.
Flight Measurements of the Effect of Various Amounts of Aileron Droop on the...
Report presenting tests of the low-speed lateral-control characteristics of an observation airplane with ailerons and spoilers in combination and with the spoilers disconnected and the ailerons used...
View ArticleClik here to view.
The Lagrangian Multiplier Method of Finding Upper and Lower Limits to...
"The theory of Lagrangian multipliers is applied to the problem of finding both upper and lower limits to the true compressive buckling stress of a clamped rectangular plate. The upper and lower limits...
View ArticleClik here to view.
An Investigation of a Thermal Ice-Prevention System for a C-46 Cargo Airplane...
Report presenting an investigation of a thermal ice-prevention system for a Curtiss-Wright C-46 airplane, including the equipment for the wings, empennage, and windshield. The report is the third in a...
View ArticleClik here to view.
Lioré-Olivier Airplane: Type 12 Night-Bomber or Type 20 Commercial
Report presenting a description of the Lioré-Olivier Type 12 night bomber, which can also be converted into the Type 20 commercial. A description of the cell of the wings, fuselage, power plant,...
View ArticleClik here to view.
A Concise Theoretical Method for Profile-Drag Calculation; Advance Report
In this report a method is presented for the calculation of the profile drag of airfoil sections. The method requlres only a knowledge of the theoretical velocity distribution and can be applied...
View ArticleClik here to view.
D.H. 86 "Express Air Liner" (British): A Four-Engine Biplane
Circular describing the De Havilland Express Air Liner, which is a four-engine two-bay biplane of clean and well-streamlined form. Details of the cabin, controls, fuselage, tail, wings, engines,...
View ArticleClik here to view.
On the Flow of a Compressible Fluid by the Hodography Method 1: Unification...
Report presenting elementary basic solutions of the equations of motion of a compressible fluid in the hodograph variables are developed and used to provide a basis for comparison in the form of...
View ArticleClik here to view.
Blériot-Spad 91 Airplane (French): Pursuit Single-Seater, Type "Jockey"
Report presenting a description of the design of the Blériot-Spad 91 airplane. This aircraft has announced a speed of 270 km per hour at 4000 m. It is of all metal construction.
View ArticleClik here to view.
Rocket-Model Investigation to Determine the Hinge-Moment and Normal-Force...
Report presenting a free-flight investigation of a rocket-powered research model to determine the hinge-moment and normal-force characteristics of a trailing-edge control on a delta wing between Mach...
View ArticleClik here to view.
An Investigation of a Thermal Ice-Prevention System for a C-46 Cargo Airplane...
Report presenting flight tests conducted to evaluate the effect of a thermal ice prevention system on the aerodynamic performance of a C-46 cargo airplane. The installation of the thermal...
View ArticleClik here to view.
Effect of Roughness on Properties of Airfoils
The first group of a large series of contemplated experiments on the effect of roughness was intended to show the effect of great roughness on airfoils of various sizes and attitudes.
View ArticleClik here to view.
Les Mureaux "130.a2" Observation Airplane (French): A High-Wing Two-Seat...
Circular presenting Les Mureaux 130.A2, which is a high-wing two-seat observation monoplane. A description of the design, performances, components, performance qualities, photographs, and drawings are...
View ArticleClik here to view.
Reciprocity relations in aerodynamics
From Introduction: "The purpose of the present paper is twofold. First, a close connection will be established between reverse-flow theorems in subsonic and supersonic, steady-state wing theory and...
View ArticleClik here to view.
The Bernard 80 G.R. Long-Distance Airplane (French) : A Two-Place Cantilever...
Circular presenting a description of the Bernard 80 aircraft. Details are provided on the body shape, wings, ribs, fuel requirements, and flight characteristics.
View ArticleClik here to view.
The S.P.C.A. 30 M.4 Military Airplane (French): A Multiplace Low-Wing Airplane
Circular describing the S.P.C.A. 30 M.4 multiplace, which is an aircraft designed to carry four people that can be used as a fighter aircraft or a day or night bomber. Details of the design,...
View ArticleClik here to view.
Wind-Tunnel Investigation of the Effects of Spoilers on the Characteristics...
Report discussing the effects of circular-arc spoilers on the section characteristics of an NACA 66,2-216 airfoil with a 0.25-chord slotted flap. Spoilers were tested on the upper surface of the...
View ArticleClik here to view.
The S.A.B.C.A. "S.XI" Commercial Airplane (Belgian): A High-Wing...
Circular describing the S.A.B.C.A. S.XI commercial airplane, which is a high-wing semicantilever monoplane. Details of the history of its creation, its design, components, engines, fuel tanks,...
View ArticleClik here to view.
Lift Theory of Supporting Surfaces: Second Article
Memorandum presenting a description of the hydrodynamic lift theory of supporting services. This report is mainly about the task of finding suitable wing sections for given lift conditions. Formulas...
View ArticleClik here to view.
An Experimental Investigation of Rectangular Exhaust-Gas Ejectors Applicable...
Report presenting an experimental investigation of rectangular exhaust-gas ejector pump to provide data that would serve as a guide to the design of ejector applications for aircraft engines with...
View ArticleClik here to view.
The development and application of high-critical-speed nose inlets
From Summary: "An analysis of the nose-inlet shapes developed in previous investigations to represent the optimum from the standpoint of critical speed has shown that marked similarity exists between...
View ArticleClik here to view.
The Dewoitine D 33 Commercial Airplane (French): A Low-Wing Cantilever Monoplane
Circular describing the Dewoitine D 33 commercial airplane, which is a low-wing cantilever monoplane. Details of the wing, fuel tanks, fuselage, landing gear, controls, engine, characteristics,...
View ArticleClik here to view.
The "I.A.R." Pursuit Airplane (Roumanian) : A One-Place Cantilever Low-Wing...
Circular presenting a description of the I.A.R. pursuit airplane. Details of the design, ailerons, fuselage, fuel tanks, landing gear, and flying qualities are provided.
View ArticleClik here to view.
Wind-Tunnel Investigation to Determine the Horizontal- and Vertical-Tail...
Results regarding an investigation to determine the horizontal- and vertical-tail contributions to the static lateral stability of a complete-model swept-wing configuration at high subsonic speeds....
View ArticleClik here to view.
The Mureaux "Brunet 3C2" Pursuit Airplane
Designed by Engineer Brunet, the 3C2 is an all metal monoplane with two engines and provision for six machine guns and 12 10 Kg. bombs. A description of the design, components, characteristics, flying...
View ArticleClik here to view.
Nieuport-Delage 640 (French): Commercial High-Wing Monoplane
The Nieuport Delage 640 is a single engine commercial high-wing monoplane of all wood construction, including the fuselage and tail. It's landing gear is hinged in two parts.
View ArticleClik here to view.
The Armstrong Whitworth A.W. 16 Military Airplane (British): A Single-Seat...
Circular presenting a description of the A.W. XVI, which is a single-bay staggered biplane of metal construction with a clean external design. A description of the tail unit, control system, cockpit,...
View ArticleClik here to view.
The De Havilland 61 "Canberra" (British): A 6-8 Passenger Airplane
Made for an Australian buyer, the Canberra is capable of carrying a payload of 1900 lbs. with a top speed of 126 M.P.H. At 105-110 M.P.H. it has a range of about 475 miles. It has a single Jupiter VI...
View ArticleClik here to view.
Ditching Tests With 1/10-Size Model of the Army a-20a Airplane 1: Calm-Water...
Report presenting tests to determine the behavior of landplanes when they are forced to land on the water. The report is incomplete.
View ArticleClik here to view.
Large-scale low-speed wind-tunnel tests of a model having a 60 degree delta...
Report presenting a wind-tunnel investigation of a model equipped with a 60 degree delta wing and a 60 degree delta horizontal all-movable canard control surface to determine the stability, control,...
View ArticleClik here to view.
Fairey "Battle" Medium Bomber Airplane (British): An All-Metal Low-Wing...
Circular presenting a description of the Fairey "Battle", which is the first stressed-skin aircraft they have constructed and is also an all-metal low-wing cantilever monoplane. Details of the...
View ArticleClik here to view.
On a New Method for Calculating the Potential Flow Past a Body of Revolution
Report presenting a new method for obtaining the velocity potential of the flow about a solid of revolution moving uniformly in the direction of its axis of symmetry in a fluid otherwise at rest. The...
View ArticleClik here to view.
The Short "Calcutta": First British All-Metal Commercial Seaplane
The Calcutta is a large seaplane, with seating for 16 and a payload of 3,400 pounds. A description of the design, construction features, engine installation, specifications, performance, and...
View ArticleClik here to view.
Profile-Drag Coefficients of Conventional and Low-Drag Airfoils as Obtained...
"The results of flight investigations of the profile drag of several carefully finished conventional and low-drag airfoils are presented. The results indicated that in all cases lower profile-drag...
View ArticleClik here to view.
NACA Mach number indicator for use in high-speed tunnels
Report presenting a description of a device for indicating stream Mach number in a high-speed tunnel. It consists of a mechanism for determining the pressure ratio that Mach number is a function of....
View ArticleClik here to view.
Westland "Wessex" Commercial Airplane (British): A High-Wing Semicantilever...
Circular presenting a description of the Westland Wessex, which differs from other airplanes of its class because of the mounting of the outboard engines on outriggers from the fuselage and the placing...
View ArticleClik here to view.
The A.N.E.C. IV "Missel Thrush" light airplane
A product of the Air Navigation Engineering Co., the Missel Thrush is a light airplane suitable for private ownership. It is a two seat tractor fuselage biplane with single I interplane struts designed...
View ArticleClik here to view.
The D.H. 85 "Leopard Moth" Airplane (British): A Three-Seat Cabin High-Wing...
Circular describing the De Havilland "Leopard Moth", which is a three-seat cabin high-wing monoplane with a good cruising speed and fuel efficiency. Details of the components, controls,...
View ArticleClik here to view.
The Boundary Layer as a Means of Controlling the Flow of Liquids and Gases
According to one of the main propositions of the boundary layer theory the scarcely noticeable boundary layer may, under certain conditions, have a decisive influence on the form of the external flow...
View ArticleClik here to view.
Critical combinations of shear and transverse direct stress for an infinitely...
Report presenting an exact solution and a closely concurring approximate energy solution for the buckling of an infinitely long flat plate under combined shear and transverse direct stress with edges...
View ArticleClik here to view.
Tests of a Thermal Ice-Prevention System for a Wing Leading-Edge...
Report discussing the creation of a thermal ice-prevention system of a bomber-type airplane to provide protection against ice and fog formations on the transparent fairing over the landing light in the...
View ArticleClik here to view.
The Dewoitine D.30 Commercial Airplane (French): A High-Wing Cantilever...
Circular describing the Dewoitine D.30, which is a commercial high-wing cantilever monoplane. Details of the wing, fuselage, tail surfaces, landing gear, flight controls, electrical equipment,...
View ArticleClik here to view.
Comparison of the performance of a helicopter-type ram-jet engine under...
Report presenting an investigation of an 18-foot-radius helicopter rotor powered by tip-mounted ramjet engines in the helicopter test tower. The engine performance is compared with the performance...
View ArticleClik here to view.
Wibault Two-Seat Monoplane 8C2: An All-Metal Pursuit and Observation Airplane
Michel Wibault's two seat monoplane 8C2, is similar to the Parasol pursuit monoplane which preceded it. It has no perishable parts in its structure and needs no special storage or coverings. The sample...
View ArticleClik here to view.
Visual Studies of Cylinder Lubrication [Part] 1: The Lubrication of the...
Report describes the lubrication characteristics of an aircraft-type piston as visually studied in a V-type engine with a glass cylinder. Information about the movement of the piston, the piston rings,...
View ArticleClik here to view.
Fiat C.R. 20 Pursuit Airplane
The Fiat C.R. 20 has an all metal frame covered with fireproof fabric, except for the area near the engines, which is covered in duraluminum. It is armed with 4 machine guns and is capable of 280 KPH.
View ArticleClik here to view.
On the plane potential flow past a symmetrical lattice of arbitrary airfoils
Report presenting a theoretical investigation of the two-dimensional, incompressible potential flow past a symmetrical lattice of airfoils of arbitrary shape. Expressions are given for evaluation of...
View ArticleClik here to view.
Caproni Airplane Ca 73 (Commercial) and Ca 73 ter (Military)
The Caproni 73 is a biplane with medium thick wings, a rigid central section, and with each lateral extension forming a single cell and is powered by two 500 Isotta Fraschini "Asso" Engines.
View ArticleClik here to view.
Ultraviolet spectrochemical analysis for aromatics in aircraft fuels
Report presenting tests to verify and extend ultraviolet spectroscopic techniques for applications to the analysis of aviation fuels for their aromatic constituents. Results regarding photographic...
View ArticleClik here to view.
An approximate spin design criterion for monoplanes
"A quantitative criterion of merit has been needed to assist airplane designers to incorporate satisfactory spinning characteristics into new designs. An approximate empirical criterion, based on the...
View Article
